Difference between revisions of "Erigeron argentatus"
Proc. Amer. Acad. Arts 8: 649. 1873.
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|common_names=Silver fleabane | |common_names=Silver fleabane | ||
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+ | |code=E | ||
+ | |label=Endemic | ||
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name=Erigeron argentatus | name=Erigeron argentatus | ||
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|authority=A. Gray | |authority=A. Gray | ||
|rank=species | |rank=species | ||
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|publication title=Proc. Amer. Acad. Arts | |publication title=Proc. Amer. Acad. Arts | ||
|publication year=1873 | |publication year=1873 | ||
− | |special status= | + | |special status=Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_627.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron |
Latest revision as of 21:04, 5 November 2020
Perennials, (8–)15–30(–40) cm; taprooted, caudices branched, retaining old leaf bases. Stems erect, densely gray-green to silvery-strigose (hairs white, closely appressed), eglandular. Leaves basal (persistent) and cauline (leaf bases broadened or not, not thickened and whitish-indurate); basal blades spatulate to oblanceolate or narrowly oblanceolate, (15–)20–50(–70) × 1–4(–6) mm, margins entire, faces silvery-strigose, eglandular; cauline blades linear to linear-oblanceolate, much reduced distally. Heads 1. Involucres 5.5–9 × (10–)12–22 mm. Phyllaries in 3–4 series, silvery-strigose (hairs closely appressed), minutely glandular. Ray florets 20–50(–75); corollas blue to lavender, less commonly pink or white, 9–15 mm, laminae coiling. Disc corollas 3.8–5.6 mm. Cypselae (terete to slightly compressed) 2.8–3.4 mm, 6–8-nerved, faces strigoso-pilose; pappi: outer of setae or lanceolate scales, inner of 25–40 bristles. 2n = 18.
Phenology: Flowering May–Jul.
Habitat: Ridges and slopes in dry, sandy or gravelly soil, desert shrub, sagebrush, juniper and pinyon-juniper
Elevation: 1300–2500 m
Distribution
![V20-627-distribution-map.gif](/w/images/b/b8/V20-627-distribution-map.gif)
Ariz., Calif., Nev., Utah.
Discussion
Selected References
None.